SMC 406 Series Check Valves

These 406 check valves incorporate a plastic poppet with an embedded O-ring that seals on the seat.

  • White polypropylene, natural nylon or black or natural Kynar® body
  • Buna-N, EPDM or Viton™ seal
  • 302 SS spring
  • Cracking pressure: .25 psi or 1 psi
  • Natural or white inlets & black outlets on polypropylene & nylon
  • Chemical resistant
  • Maximum operating pressure:125 psi
  • Maximum operating temperature: 140°F
  • Cv: 0.4 with 1/4 barb ends
  • Made in the USA
Stock Description Catalog Pg. Price
1/8" HB x 1/8" HB Black Kynar® Check Valve with 1 psi Spring & Viton™ Seal
22619
1/8" HB x 1/8" HB Black Kynar® Check Valve with 1 psi Spring & Viton™ Seal
$9.15​/Each
Save 5%12+$8.69/Each
Save 10%24+$8.23/Each
Save 15%72+$7.77/Each
P-172
$9.15​/Each
On Order
3/16" HB x 3/16" HB Black Kynar® Check Valve with 1 psi Spring & Viton™ Seal
22620
3/16" HB x 3/16" HB Black Kynar® Check Valve with 1 psi Spring & Viton™ Seal
$9.15​/Each
Save 5%12+$8.69/Each
Save 10%24+$8.23/Each
Save 15%72+$7.77/Each
P-172
$9.15​/Each
In Stock
1/4" HB x 1/4" HB Black Kynar® Check Valve with 1 psi Spring & Viton™ Seal
22621
1/4" HB x 1/4" HB Black Kynar® Check Valve with 1 psi Spring & Viton™ Seal
$9.15​/Each
Save 5%12+$8.69/Each
Save 10%24+$8.23/Each
Save 15%72+$7.77/Each
P-172
$9.15​/Each
In Stock
3/8" HB x 3/8" HB Natural Kynar® Check Valve with 1 psi Spring & Viton™ Seal
22622
3/8" HB x 3/8" HB Natural Kynar® Check Valve with 1 psi Spring & Viton™ Seal
$8.88​/Each
Save 5%12+$8.43/Each
Save 10%24+$7.99/Each
Save 15%72+$7.54/Each
P-172
$8.88​/Each
In Stock
1/8" HB x 1/8" HB Polypropylene Check Valve with .25 psi Spring & Buna-N Seal
22570
1/8" HB x 1/8" HB Polypropylene Check Valve with .25 psi Spring & Buna-N Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
1/8" HB x 1/8" HB Polypropylene Check Valve with .25 psi Spring & EPDM Seal
22571
1/8" HB x 1/8" HB Polypropylene Check Valve with .25 psi Spring & EPDM Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
1/8" HB x 1/8" HB Polypropylene Check Valve with .25 psi Spring & Viton™ Seal
22572
1/8" HB x 1/8" HB Polypropylene Check Valve with .25 psi Spring & Viton™ Seal
$5.48​/Each
Save 5%12+$5.20/Each
Save 10%24+$4.93/Each
Save 15%72+$4.65/Each
P-172
$5.48​/Each
In Stock
1/8" HB x 1/8" HB Polypropylene Check Valve with 1 psi Spring & Buna-N Seal
22573
1/8" HB x 1/8" HB Polypropylene Check Valve with 1 psi Spring & Buna-N Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
1/8" HB x 1/8" HB Polypropylene Check Valve with 1 psi Spring & EPDM Seal
22574
1/8" HB x 1/8" HB Polypropylene Check Valve with 1 psi Spring & EPDM Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
1/8" HB x 1/8" HB Polypropylene Check Valve with 1 psi Spring & Viton™ Seal
22575
1/8" HB x 1/8" HB Polypropylene Check Valve with 1 psi Spring & Viton™ Seal
$5.48​/Each
Save 5%12+$5.20/Each
Save 10%24+$4.93/Each
Save 15%72+$4.65/Each
P-172
$5.48​/Each
In Stock
3/16" HB x 3/16" HB Polypropylene Check Valve with .25 psi Spring & Buna-N Seal
22576
3/16" HB x 3/16" HB Polypropylene Check Valve with .25 psi Spring & Buna-N Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
3/16" HB x 3/16" HB Polypropylene Check Valve with .25 psi Spring & EPDM Seal
22577
3/16" HB x 3/16" HB Polypropylene Check Valve with .25 psi Spring & EPDM Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
3/16" HB x 3/16" HB Polypropylene Check Valve with .25 psi Spring & Viton™ Seal
22578
3/16" HB x 3/16" HB Polypropylene Check Valve with .25 psi Spring & Viton™ Seal
$5.48​/Each
Save 5%12+$5.20/Each
Save 10%24+$4.93/Each
Save 15%72+$4.65/Each
P-172
$5.48​/Each
In Stock
3/16" HB x 3/16" HB Polypropylene Check Valve with 1 psi Spring & Buna-N Seal
22579
3/16" HB x 3/16" HB Polypropylene Check Valve with 1 psi Spring & Buna-N Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
3/16" HB x 3/16" HB Polypropylene Check Valve with 1 psi Spring & EPDM Seal
22580
3/16" HB x 3/16" HB Polypropylene Check Valve with 1 psi Spring & EPDM Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
3/16" HB x 3/16" HB Polypropylene Check Valve with 1 psi Spring & Viton™ Seal
22581
3/16" HB x 3/16" HB Polypropylene Check Valve with 1 psi Spring & Viton™ Seal
$5.48​/Each
Save 5%12+$5.20/Each
Save 10%24+$4.93/Each
Save 15%72+$4.65/Each
P-172
$5.48​/Each
In Stock
1/4" HB x 1/4" HB Polypropylene Check Valve with .25 psi Spring & Buna-N Seal
22582
1/4" HB x 1/4" HB Polypropylene Check Valve with .25 psi Spring & Buna-N Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
1/4" HB x 1/4" HB Polypropylene Check Valve with .25 psi Spring & EPDM Seal
22583
1/4" HB x 1/4" HB Polypropylene Check Valve with .25 psi Spring & EPDM Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
1/4" HB x 1/4" HB Polypropylene Check Valve with .25 psi Spring & Viton™ Seal
22584
1/4" HB x 1/4" HB Polypropylene Check Valve with .25 psi Spring & Viton™ Seal
$5.48​/Each
Save 5%12+$5.20/Each
Save 10%24+$4.93/Each
Save 15%72+$4.65/Each
P-172
$5.48​/Each
In Stock
1/4" HB x 1/4" HB Polypropylene Check Valve with 1 psi Spring & Buna-N Seal
22585
1/4" HB x 1/4" HB Polypropylene Check Valve with 1 psi Spring & Buna-N Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
1/4" HB x 1/4" HB Polypropylene Check Valve with 1 psi Spring & EPDM Seal
22586
1/4" HB x 1/4" HB Polypropylene Check Valve with 1 psi Spring & EPDM Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
Special Order
1/4" HB x 1/4" HB Polypropylene Check Valve with 1 psi Spring & Viton™ Seal
22587
1/4" HB x 1/4" HB Polypropylene Check Valve with 1 psi Spring & Viton™ Seal
$5.48​/Each
Save 5%12+$5.20/Each
Save 10%24+$4.93/Each
Save 15%72+$4.65/Each
P-172
$5.48​/Each
In Stock
3/8" HB x 3/8" HB Polypropylene Check Valve with .25 psi Spring & Buna-N Seal
22588
3/8" HB x 3/8" HB Polypropylene Check Valve with .25 psi Spring & Buna-N Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
3/8" HB x 3/8" HB Polypropylene Check Valve with .25 psi Spring & EPDM Seal
22589
3/8" HB x 3/8" HB Polypropylene Check Valve with .25 psi Spring & EPDM Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
3/8" HB x 3/8" HB Polypropylene Check Valve with .25 psi Spring & Viton™ Seal
22590
3/8" HB x 3/8" HB Polypropylene Check Valve with .25 psi Spring & Viton™ Seal
$5.48​/Each
Save 5%12+$5.20/Each
Save 10%24+$4.93/Each
Save 15%72+$4.65/Each
P-172
$5.48​/Each
In Stock
3/8" HB x 3/8" HB Polypropylene Check Valve with 1 psi Spring & Buna-N Seal
22591
3/8" HB x 3/8" HB Polypropylene Check Valve with 1 psi Spring & Buna-N Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
3/8" HB x 3/8" HB Polypropylene Check Valve with 1 psi Spring & EPDM Seal
22592
3/8" HB x 3/8" HB Polypropylene Check Valve with 1 psi Spring & EPDM Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
3/8" HB x 3/8" HB Polypropylene Check Valve with 1 psi Spring & Viton™ Seal
22593
3/8" HB x 3/8" HB Polypropylene Check Valve with 1 psi Spring & Viton™ Seal
$5.48​/Each
Save 5%12+$5.20/Each
Save 10%24+$4.93/Each
Save 15%72+$4.65/Each
P-172
$5.48​/Each
In Stock
1/8" HB x 1/8" HB Nylon Check Valve with .25 psi Spring & Buna-N Seal
22594
1/8" HB x 1/8" HB Nylon Check Valve with .25 psi Spring & Buna-N Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
1/8" HB x 1/8" HB Nylon Check Valve with .25 psi Spring & EPDM Seal
22595
1/8" HB x 1/8" HB Nylon Check Valve with .25 psi Spring & EPDM Seal
$5.32​/Each
Save 5%12+$5.05/Each
Save 10%24+$4.78/Each
Save 15%72+$4.52/Each
P-172
$5.32​/Each
In Stock
1/8" HB x 1/8" HB Nylon Check Valve with .25 psi Spring & Viton™ Seal
22596
1/8" HB x 1/8" HB Nylon Check Valve with .25 psi Spring & Viton™ Seal
$5.48​/Each
Save 5%12+$5.20/Each
Save 10%24+$4.93/Each
Save 15%72+$4.65/Each
P-172
$5.48​/Each
In Stock
1/8" HB x 1/8" HB Nylon Check Valve with 1 psi Spring & Buna-N Seal
22597
1/8" HB x 1/8" HB Nylon Check Valve with 1 psi Spring & Buna-N Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
1/8" HB x 1/8" HB Nylon Check Valve with 1 psi Spring & EPDM Seal
22598
1/8" HB x 1/8" HB Nylon Check Valve with 1 psi Spring & EPDM Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
1/8" HB x 1/8" HB Nylon Check Valve with 1 psi Spring & Viton™ Seal
22599
1/8" HB x 1/8" HB Nylon Check Valve with 1 psi Spring & Viton™ Seal
$5.48​/Each
Save 5%12+$5.20/Each
Save 10%24+$4.93/Each
Save 15%72+$4.65/Each
P-172
$5.48​/Each
In Stock
3/16" HB x 3/16" HB Series 406 Nylon check Valve with .25 psi Spring & Buna-N Seal
22600
3/16" HB x 3/16" HB Series 406 Nylon check Valve with .25 psi Spring & Buna-N Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
3/16" HB x 3/16" HB Series Nylon Check Valve with .25 psi Spring & EPDM Seal
22601
3/16" HB x 3/16" HB Series Nylon Check Valve with .25 psi Spring & EPDM Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
3/16" HB x 3/16" HB Series 406 Nylon check Valve with 1 psi Spring & Buna-N Seal
22603
3/16" HB x 3/16" HB Series 406 Nylon check Valve with 1 psi Spring & Buna-N Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
3/16" HB x 3/16" HB Nylon Check Valve with 1 psi Spring & EPDM Seal
22604
3/16" HB x 3/16" HB Nylon Check Valve with 1 psi Spring & EPDM Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
3/16" HB x 3/16" HB Nylon Check Valve with .25 psi Spring & Viton™ Seal
22602
3/16" HB x 3/16" HB Nylon Check Valve with .25 psi Spring & Viton™ Seal
$5.48​/Each
Save 5%12+$5.20/Each
Save 10%24+$4.93/Each
Save 15%72+$4.65/Each
P-172
$5.48​/Each
In Stock
1/4" HB x 1/4" HB Nylon Check Valve with .25 psi Spring & Buna-N Seal
22606
1/4" HB x 1/4" HB Nylon Check Valve with .25 psi Spring & Buna-N Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
1/4" HB x 1/4" HB Nylon Check Valve with .25 psi Spring & EPDM Seal
22607
1/4" HB x 1/4" HB Nylon Check Valve with .25 psi Spring & EPDM Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
1/4" HB x 1/4" HB Nylon Check Valve with .25 psi Spring & Viton™ Seal
22608
1/4" HB x 1/4" HB Nylon Check Valve with .25 psi Spring & Viton™ Seal
$5.48​/Each
Save 5%12+$5.20/Each
Save 10%24+$4.93/Each
Save 15%72+$4.65/Each
P-172
$5.48​/Each
In Stock
1/4" HB x 1/4" HB Nylon Check Valve with 1 psi Spring & Buna-N Seal
22609
1/4" HB x 1/4" HB Nylon Check Valve with 1 psi Spring & Buna-N Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
1/4" HB x 1/4" HB Nylon Check Valve with 1 psi Spring & EPDM Seal
22611
1/4" HB x 1/4" HB Nylon Check Valve with 1 psi Spring & EPDM Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
1/4" HB x 1/4" HB Nylon Check Valve with 1 psi Spring & Viton™ Seal
22612
1/4" HB x 1/4" HB Nylon Check Valve with 1 psi Spring & Viton™ Seal
$5.48​/Each
Save 5%12+$5.20/Each
Save 10%24+$4.93/Each
Save 15%72+$4.65/Each
P-172
$5.48​/Each
In Stock
3/16" HB x 3/16" HB Nylon Check Valve with 1 psi Spring & Viton™ Seal
22605
3/16" HB x 3/16" HB Nylon Check Valve with 1 psi Spring & Viton™ Seal
$5.48​/Each
Save 5%12+$5.20/Each
Save 10%24+$4.93/Each
Save 15%72+$4.65/Each
P-172
$5.48​/Each
In Stock
3/8" HB x 3/8" HB Nylon Check Valve with .25 psi Spring & EPDM Seal
22614
3/8" HB x 3/8" HB Nylon Check Valve with .25 psi Spring & EPDM Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
3/8" HB x 3/8" HB Nylon Check Valve with .25 psi Spring & Viton™ Seal
22615
3/8" HB x 3/8" HB Nylon Check Valve with .25 psi Spring & Viton™ Seal
$5.48​/Each
Save 5%12+$5.20/Each
Save 10%24+$4.93/Each
Save 15%72+$4.65/Each
P-172
$5.48​/Each
In Stock
3/8" HB x 3/8" HB Nylon Check Valve with 1 psi Spring & Buna-N Seal
22616
3/8" HB x 3/8" HB Nylon Check Valve with 1 psi Spring & Buna-N Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
3/8" HB x 3/8" HB Nylon Check Valve with 1 psi Spring & EPDM Seal
22617
3/8" HB x 3/8" HB Nylon Check Valve with 1 psi Spring & EPDM Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
3/8" HB x 3/8" HB Nylon Check Valve with .25 psi Spring & Buna-N Seal
22613
3/8" HB x 3/8" HB Nylon Check Valve with .25 psi Spring & Buna-N Seal
$5.17​/Each
Save 5%12+$4.91/Each
Save 10%24+$4.65/Each
Save 15%72+$4.39/Each
P-172
$5.17​/Each
In Stock
3/8" HB x 3/8" HB Nylon Check Valve with 1 psi Spring & Viton™ Seal
22618
3/8" HB x 3/8" HB Nylon Check Valve with 1 psi Spring & Viton™ Seal
$5.48​/Each
Save 5%12+$5.20/Each
Save 10%24+$4.93/Each
Save 15%72+$4.65/Each
P-172
$5.48​/Each
In Stock

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